3 PHASE ELECTRONIC ENERGY METER WITH PULSE OUTPUT EDM 551 - SERIES
 
EDM 551 is a 3-phase energy meter from Essen for true RMS energy calculations. It is available in an elegant enclosure having bezel size 96 x 96 mm. A 6 digit non-resettable mechanical counter displays energy consumption as per Class 1 / 0.5 accuracy. Reverse power indication is available through an LED to detect tampering and energy is recorded correctly even under reverse conditions. An optically isolated pulse output for use in energy management networks is a standard feature. It has a wide auxiliary input voltage range from 85-265V AC/DC for use anywhere in the world.
Features
  • RMS energy calculations accurate even on highly distorted waveforms
  • Same model can be used in 3 phase 4 Wire (Star), 3 phase 3 wire (Delta) as well as single phase applications
  • Cut-out size 90+1(W) x 90+1(H) x 90(D)mm.
  • Universal auxiliary input voltage 85- 265 V AC/DC, 50- 60 Hz in all models.
  • Display using a 6 digit non-resettable mechanical counter.
  • Light yet robust construction using latest solid state electronic circuitry .
  • Accuracy Class 1 as per 15.13779:1999 and IEC 1036:1996. (Class 0.5 also available)
  • Two metallic screw clamps for easy Panel mounting.
  • Finger touch-proof rising clamp terminals with huge cabling capacity for better shock protection
Specifications
Supply Voltage
Mounting 
Display
Overflow hours
Power
Panel cut-out
Pulsed Output

Wiring possibilities


Impulse Voltage
Insulation
Connections
Protection class
Enclosure Material
Ambient
Temperature
Warranty
Weight 		Universal auxiliary input voltage 85-265 V AC/DC, 50-60 Hz in all models.  
2 metallic screw clamps for flush panel mounting.
Non- resettable tamper proof 6 digit mechanical counter.
25,000 hours minimum at rated load conditions.
2 Watts maximum on auxiliary supply, 0.2VA maximum per phase.
90.0 (W) x 90.0(H) mm(Tol.+/-1.0 0) mm. Depth behind panel 90.1 mm.
Potential free opto-isolator with open collector transistor output @ 24 VDC,
100 mA maximum. 250ms +/- 50ms pulse width
Single Phase connections
3 phase, 3 element 4 wire Star connections
3 phase, 2 element 3 wire Delta connections
6 KV 1.2/50us impulse voltage between terminals and body
1.5 KV @ 50Hz for 1 minute between auxiliary supply and input terminals.
Rising cage clamp terminal block with 4mm2 (10 AWG) maximum flexible strand cable connections.
IP 51 (front), IP 20 terminals. (Indoor mounted meter as per IEC)
High Grade Flame retardant UL-94V0 Engineering Thermoplastic.
0 -60 °C, Relative humidity < 95% (non condensing).
Storage temperature: -10 to 75 °C.
year from date of purchase.
346 g (with clamps),400 g (shipping)
   
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